Tool for truing grinding and abrading wheels.



No. 830,293. PATENTED SEPT.'4, 1906. L. BINGBLL.

TOOL FOR TRUING GRINDING AND ABRADING WHEELS APPLICATION FILEDAPR.2B.1908.

WITNESSES INVENTOR the tool.

nnrrnn srlrrns LOU IS Bl NGELL,

earner ost ich.

DETROIT, mentoring fipeciflcation of Letters Patent. Application filedApril 26, 1906, Serial No. 913.758.

" Patented Sept.4;,'190fi.

To all whom it may concern:

Be it known that I,LOU1s BINGELL, a citizen oi the United fitates,residing at Detroit,

county of Wayne, State of Michigan, have invented a certain new anduseful improvc ment in Tools for Truing Grindini and Abradin /Vheels andI declare the following to be a hill, clear, and exact description oftheinvention, such as will enable others skilled in the art to which itpertains to make and use the same, reference being had to the accompanying drawings, which form apart of this specification.

This invention relates to tools for truing grinding and abrading wheels.

It has for its object an improved tool for the purpose specified. 1

In the drawings, Figure 1 is a plan view of Fig. 2 shows apinion-actuator inplace of the quadrant-acthator of Fig. 1

1 The tool consists of a tubular body 1, in which'there is contained atool-head carrier 2 ,provided on one side with a'rack 3 and carrying atone end .a head 4, which is also tubular, with the openingnthrough it atright an les to the opening t on 11 the body part 1.

he head'part 4 is provi ed at one end with bearings 5 for ahand-actuated screw 6. The

screw engages in the stem 7 bf'thc abrading tool, WlllCllconsists of anumber of corrugated disks 8, mounted on ashait 9, which shaft 9 isjournaled in a fork 10 at the end'of the tool-stem 9-.

The tubular body part 1 is preferably made in two parts, securedtogether bybolts, and

1 the tubular head part is also preferably made in twoparts, securedtogether by bolts. The

carrier 2 is rectangularin cross section or screw-hole in the stem 7. Onthe front side of 'pris atic. -So,'also,the tool-stenr7 isrectangular incross-section or prismatic. Y Thebody' art 1 is-provided with-handle-suport proections 11, in which there is pivote a hand- I love 12, having anarched rackv 13." The rec 13 engages with the rack 3 on the carrier 2.The screw 6 engages in'a threaded the body 1 opposite the handle-supportprojections 11 are secured two brackets 14 and 15, provided withcircular perforations, and

through the perforations extends one branch 16 of a squaring-guide whosebranch 17 can be'swung to a position of arallelism with the axis of thestem 7 but if eft without sup port the arm 17 will drop (when the toolis in position for work) to a position at an angle to the'stem 7, whereit is no longer in a position to interfere in any way with the properwork ing of the tool. Its useis to square up the tool with the stone tobe treated 1n order that the tool stem 7 may be projected to the properdistance through the head 4 to engage properly with the face of thestone.

From the body 1 there rejects upward a trunnion 18 and downward atrunnion opposite the trunnion 18, (which is not seen in drawingsJ inuse one of the trunmons is seated in a bearing in the frame of thestoneto be trueci,

right or to the left of the handle 12 and the body 1; The workmanselects that position which is best adapted for the articular stoneunder. treatment, and the too works equally well either side up Afterthetrunmon is seated in its bearing the carrier 2, is moved until theaxis of the tool-stem 7 is in salinement with the normal to the face ofthe stone to be trued. This face of the stone may be at right angles tothe side face of the stone or it may be at an'angle thereto. The toolwill work to true up elther face with equal facil it as, for example, itwill time u the face the stone shown in dotted lines.

By oscillating the handle 12 the, truingventire face ofthestone and areheld truly the straight line in their path of travel.

wheelsa' im'on-actuator 18, driven by hand-wine 19, is em loyedr Thecarnage. 22'ismade longer, an the raclr. 23 is placed on the under side.The pinion issupported same, the ran e of movement eater. Whaii llclaimis- 1. In a tool for truing up abrading-wheeis, the combination of abody portion, a carrier enga "n therethrough, means supported by said. yportion and on aging said carrier whereby its position wit respect. itsaid body portion may be regulated, a tool-carryhag'head at one end ofsaid carrier, and an a justable'stem provided with'an abrasive endportion engaging through said head transversely to the longitudinal axisof the carrier, substantially as described.

in combination with a body portion, a carrier passing therethrough, a mo-segment pivotally supported by said body portion and en 0 the stoneshown in full lines or t e face disks 8 are carried in reciprocationacross the;

For-machines to be used with-broad-faced in han era 24." The principleof action is the 2. In a tool for truing up abrading-wheels, I

the one to be used determining whether tool-truing disks 8 shall belocated to the abrasive i001 adjustebly held thereby, the

axis of its possible movement being perpendicular to-the lengthwise axisof the carrier, eubsm-i hieily as described.

life (3001 for tl'llii lg up abrading-Whee'ls; in combination with acarrier, :1 squaring-up implement held $0 the body part and having I anarm adapted to be breug'ut into parallelism simultaneously Wlt-h theaxis the tool- 5 stem, and with e normal to the surface to be tuned,substentlally as described. I 111. testimony whereof I sign thisspecification in the presence of two Witnesses. 1 v LOUIS BINGELL.

,, Witnesses:

CHARLES F. BURTON.

l r I MAY E. LOTT, l

